Notepad or wordpad or other basic text editor.

I set up a runtime as C:runtimeetc so that when its zipped the paths begin at runtime , so will unzip directly to the poser libraries.

If you change the Poser setting from deep to none then all your paths MUST be correct or you get an error. Using DEEP will screw you up during testing.

I have a script that extracts filenames from poser files , and I run that to check that the file names are using relative paths.

There a utility in freestuff called I think file lister which will create a listing of all the files for your product if you start with a clean runtime.

Essentially all you need is a zip file utility like winzip, winrar or other that makes a zip that includes file paths.